No abstract available.
Talus*

Closed interlocking nailing has become a common method of treatment of femoral fractures in adults. Interlocking nailing had a tendency toward rotational deformity and shortening. Therefore, we determined anteversion of the femoral neck after closed IM nailing of the femoral fractures. Femoral rotational deformity in both leg was determined by the construction of a line through the femoral neck and another through the transcondylar plane of the distal portion of the femur, using the CT scanning. We performed a retrospective study of 15 patients treated with closed IM nailing for femoral shaft fractures from 1989 to 1994. 1. The average differences in anteversion angle was 12.9 degree. 2. 3 cases(50%) in 6 cases that have difference more than 15° are accompanied with ispilateral injury of the knee joint and the lower leg. 3. Angle difference of the rotational deformity of proximal or distal femoral fractures is 15.5° which is 3.5° larger than that of fractures of femoral midshaft, 12.0°.
Adult ; Congenital Abnormalities ; Femoral Fractures ; Femur ; Femur Neck ; Humans ; Knee Joint ; Leg ; Methods ; Retrospective Studies ; Tomography, X-Ray Computed

PURPOSE: To compare the detectability and conspicuity of focal hepatic lesions among conventional spin echo techniqueniques and fast scanning techniqueniques in MR imaging. MATERIALS AND METHOD: 36 patients (24 men and 12 women, mean age of 54 years) with suspected liver mass on CT scan and US underwent MR imaging at 1.5 T system. Conventional spin echo T1, T2 weighted imaging, T2 weighted fast spin echo, T1 weighted fast multiplanar spoiled gradient recalled(FMPSPGR) imaging and Gd-enhanced FMPSPGR(Gd-FMPSPGR) were performed. 16 cases of hepatocellular carcinoma, 13 cases of hemangioma, 3 cases of metastasis, 3 cases of cholangiocarcinoma, and 1 case of lymphoma were included. Lesion conspicuity and number of detected hepatic masses were compared among the MR sequences. RESULTS: Overall 63 hepatic lesions were detected in 36 patients. Lesion detection' was 63(100%) with Gd-FMPSPGR, 62(98%) with non-enhanced FMPSPGR, 58(92%) with SE T2WI, 56(89%) with SE T1WI and 54 (86%)with FSE. For solid tumors, the contrast to noise ratio was greatest on Gd-FMPSPGR which was significantly higher than any other sequences. For hemangiomas it was greatest on SE T2WI and was significantly higher than SE T1WI. In the qualitative assessment, Gd-FMPSPGR was preferred for both solid mass lesion and hemangioma. FSE was inferior to SE T2WI for lesion detection and conspicuity without statistical significance. CONCLUSIONS: For the evaluation of focal hepatic lesions, breath-hold FMPSPGR with and without contrast enhancement may replace the conventional SE T1WI. Because FSE was inferior to SE T2WI when the later is used with respiratory compensation in some cases, it is difficult to replace the SE T2WI with FSE. But FSE, FMPSPGR and Gd-FMPSPGR images, when combined, may replace SE T1WI and SE T2WI.
Carcinoma, Hepatocellular ; Cholangiocarcinoma ; Compensation and Redress ; Female ; Hemangioma ; Humans ; Liver ; Lymphoma ; Magnetic Resonance Imaging ; Male ; Neoplasm Metastasis ; Noise ; Tomography, X-Ray Computed

Peripheral cementifying fibroma is histomorphologically similar to the central cementifying fibroma, but this lesion is unique to the gingival mucosa and is only rarely seen in edentulous area. In most instances, it arise from interdental papilla, with 80% occurring anterior to molar region. This lesion appears to involve the maxilla and mandible equally, demonstrates the highest occurrence rate during the second decade of life, and affects female more frequently than male, with 4.3:1 to 3:2. Peripheral cementifying fibroma presents as firm, pedunculated or sessile mass with an intact or ulcerated surface depending on the presence of trauma. Microscopically, it reveals a highly cellular mass of connective tissue containing numerous plump, proliferating fibrolasts and several forms of calcification. Effective treatment requires deep excision, which includes the ligament and periosteum, followed by a thorough root scaling of the adjacent teeth. A reveiw of the literature and a report of a case of peripheral cementifying fibroma are presented.
Connective Tissue ; Dental Scaling ; Female ; Fibroma* ; Gingiva ; Humans ; Ligaments ; Male ; Mandible ; Maxilla ; Molar ; Mucous Membrane ; Periodontal Ligament* ; Periosteum ; Tooth* ; Ulcer

Histopathological effects due to elevation of blood pressure induced by norepinephrine and sodium chloride, and due to high cholesterol feeding were studied upon the arteries and various organs of rats for the evaluation of relationship between arteriosclerosis and hypertension. Blood pressure was generally elevated in all groups, but rose significantly, particularly in the groups receiving sodium chloride. This was especially abrupt at the end of 3 months. No particular gross nor histopathologic changes were found in the aorta, but variable alterations in the coronary and renal arteries including hypertrophic and proliferative changes were characteristically identified. Variable interesting changes of myocardium, kidneys and adrenal glands were also observed. The hypertrophic changes were especially due to hyalinosis in the vascular wall, and the proliferative changes in several cases were similiar to that noted in malignant hypertension. Induction of hypertension by norepinephrine and sodium chloride caused arterial changes such as hypertrophic changes, mainly hyalinosis, and proliferative and necrotizing changes especially in the renal and coronary arteries of rats.
Animals ; Arteries/*pathology ; Hypertension/*pathology ; Male ; Norepinephrine/*pharmacology ; Rats ; Sodium Chloride/*pharmacology

Esophageal ulcers induced by doxycycline is a rare complication. These patients usually complain of sudden onset of symptoms, ie acute substernal or chest pain and odynophagia without prior hietory of esophageal syraptoms. On esophagoscopic examination, there are upper or midesophageal ulcers, which heal after diseontinuation of the drug within 2 weeks. A history of ingestion of the doxycycline,with liquid jost before bedtime can be elicited. The exact eause of the xaucosal ulceration is not clear, but a direct irritant effeet on esophageal mucosa seems most likely. We report 5 cases of esophageal uleeration secondary to the ingestion of doxycydine. Esophagoscopy revealed esophageal ulcers in all patients and the patients hecame asymptomatic following stopping of tbe drugs and taking antacids.
Antacids ; Chest Pain ; Doxycycline* ; Eating ; Esophagoscopy ; Humans ; Mucous Membrane ; Ulcer*

No abstract available.
Quinolones* ; Vibrio vulnificus* ; Vibrio*

Immune complex deposits have been found in the choroid plexus in patients with systemic lupus erythematosus, and it can be assumed that an immune complex injury to the choroid plexus might be related to the neuropsychiatric disorder seen in patients with SLE. Acute serum sickness was experimentally induced in rabbits by intravenous injection of crystalized BSA. Prednisolone in conventionl dosage was administered to study the immunologic injury of the choroid plexus as well as the mechanisms involved in the prednisolone effect. Light, electron microscopic and immunofluorescent studies were made. The host immunoglobulins(IgG, IgA, IgM) and beta 1 C globulin were demonstrated in the choroid plexus. Histopathological findings included mild to moderate interstitial and perivascular lymphocyte and plasma cell infiltrations and edema. Control animals showed no immune deposits and no histopathologic changes. Electron microscopic findings comparing the immunofluorescent and histopathologic changes were minimal, and showed sparse, vague electron dense deposits particularly in the interstitial spaces, knob-like focal thickening of vascular basement membrane, swelling of endothelial cells, and some accentuation of interstitial cells. The morphologic and functional similarities of the choroid plexus and glomerular basement membrane, the findings in morphologic, electron microscopic and immunofluorescent examinations of the experimental rabbits, along with the observed effects of prednisolone, together with similar reports in the recent literature suggest that immunologic injury of the choroid plexus could be considered as a new disease entity. This immunologic injury might play a significant role in neuropsychiatric disorders in the long standing immune complex deposit diseases. The very interesting finding is the nature and function of the interstitial cell between the endothelial (vascular) and epithelial side basement membranes, and speculation as to whether or not the role of this interstitial cell in choroid plexus injury may be in its possible analogy with glomerular mesangial cells.
Acute Disease ; Animal ; Choroid Plexus/drug effects ; Choroid Plexus/immunology* ; Choroid Plexus/pathology ; Lupus Erythematosus, Systemic/etiology ; Prednisolone/pharmacology* ; Rabbits ; Serum Sickness/chemically induced ; Serum Sickness/complications* ; Serum Sickness/immunology

The eosinophilia-myalgia syndrome associated with ingestion of L-tryptophan in man is defined by the CDC(1989) as follows: 1) eosinophil count more than 1,000 cells per microliter; 2) generalized myaligia(at some point during the course of illness) of severity sufficient to affect a patient's ability to pursue his or her usual daily activities; 3) no evidence of any infection(e.g., trichinosis) or neoplasm that would explain either the eosinophila or the myalgia. The pathologic findings of the eosinophilia-myalgia syndrome varies according to the degree of severity and types of inflammatory cells in the skeletal muscle. In order to simulate this syndrome in animals and further determine its histopathogenesis, L-tryptophan was administered to rats in the laboratory at various doses(25 mg/kg, 50 mg/kg, 150 mg/kg) over a set period of time. In this study, positive histopathologic findings were designated according to the inflammatory cell infiltration of the epimysium and epineurium. Most of the pathologic findings in the positive group were that of inflammatory cell infiltration composed mainly of eosinophils in the epimysial, epineurial connective and surrounding adipose tissues. Only a few necrotic muscle fibers were seen, and there was absence of any evidence of inflammatory cell inflitration in endoneurium or axonal degenerations. Of 59 rats which were given L-tryptophan, 27 rats(45.8%) met the criteria and were designated as belongintg to the positive group. Only 2 rats ingested with L-tryptophan(150 mg/kg) for 2 months and 4 months showed an eosinophil count more than 1,000 cells/microliter. The eosinophil count in the positive group showed significantly different levels when compared to the the negative group and control group. On the other hand, there were no significant differences in the electrodiagnostic study and serum CK, SGOT, SGPT level between the positive, negative and control groups. In summary, histopathologic findings similar to the eosinophilia-myalgia syndrome were inducible in rats followign the administration of L-tryptophan.
Male ; Humans ; Rats ; Animals

No abstract available.
Gonadal Dysgenesis, Mixed*